always show filters and compressors in Array.info

Author: normanrz

docs/user-guide/arrays.rst

@@ -188,6 +188,7 @@ which can be used to print useful diagnostics, e.g.::
    Order              : C
    Read-only          : False
    Store type         : LocalStore
+   Filters            : ()
    Serializer         : BytesCodec(endian=<Endian.little: 'little'>)
    Compressors        : (BloscCodec(typesize=4, cname=<BloscCname.zstd: 'zstd'>, clevel=3, shuffle=<BloscShuffle.bitshuffle: 'bitshuffle'>, blocksize=0),)
    No. bytes          : 400000000 (381.5M)
@@ -204,6 +205,7 @@ prints additional diagnostics, e.g.::
    Order              : C
    Read-only          : False
    Store type         : LocalStore
+   Filters            : ()
    Serializer         : BytesCodec(endian=<Endian.little: 'little'>)
    Compressors        : (BloscCodec(typesize=4, cname=<BloscCname.zstd: 'zstd'>, clevel=3, shuffle=<BloscShuffle.bitshuffle: 'bitshuffle'>, blocksize=0),)
    No. bytes          : 400000000 (381.5M)
@@ -605,6 +607,7 @@ Sharded arrays can be created by providing the ``shards`` parameter to :func:`za
   Order              : C
   Read-only          : False
   Store type         : LocalStore
+  Filters            : ()
   Serializer         : BytesCodec(endian=<Endian.little: 'little'>)
   Compressors        : (ZstdCodec(level=0, checksum=False),)
   No. bytes          : 100000000 (95.4M)

docs/user-guide/groups.rst

@@ -109,6 +109,7 @@ property. E.g.::
    Order              : C
    Read-only          : False
    Store type         : MemoryStore
+   Filters            : ()
    Serializer         : BytesCodec(endian=<Endian.little: 'little'>)
    Compressors        : (ZstdCodec(level=0, checksum=False),)
    No. bytes          : 8000000 (7.6M)
@@ -124,6 +125,7 @@ property. E.g.::
    Order              : C
    Read-only          : False
    Store type         : MemoryStore
+   Filters            : ()
    Serializer         : BytesCodec(endian=<Endian.little: 'little'>)
    Compressors        : (ZstdCodec(level=0, checksum=False),)
    No. bytes          : 4000000 (3.8M)

docs/user-guide/performance.rst

@@ -98,6 +98,7 @@ To use sharding, you need to specify the ``shards`` parameter when creating the
    Order              : C
    Read-only          : False
    Store type         : MemoryStore
+   Filters            : ()
    Serializer         : BytesCodec(endian=<Endian.little: 'little'>)
    Compressors        : (ZstdCodec(level=0, checksum=False),)
    No. bytes          : 100000000000 (93.1G)
@@ -126,6 +127,7 @@ ratios, depending on the correlation structure within the data. E.g.::
    Order              : C
    Read-only          : False
    Store type         : MemoryStore
+   Filters            : ()
    Serializer         : BytesCodec(endian=<Endian.little: 'little'>)
    Compressors        : (ZstdCodec(level=0, checksum=False),)
    No. bytes          : 400000000 (381.5M)
@@ -144,6 +146,7 @@ ratios, depending on the correlation structure within the data. E.g.::
    Order              : F
    Read-only          : False
    Store type         : MemoryStore
+   Filters            : ()
    Serializer         : BytesCodec(endian=<Endian.little: 'little'>)
    Compressors        : (ZstdCodec(level=0, checksum=False),)
    No. bytes          : 400000000 (381.5M)

src/zarr/core/_info.py

@@ -116,12 +116,11 @@ def __repr__(self) -> str:
             # for non-regular chunk grids
             kwargs["chunk_shape"] = "<variable>"
 
-        if len(self._filters) > 0:
-            template += "\nFilters            : {_filters}"
+        template += "\nFilters            : {_filters}"
         if self._serializer is not None:
             template += "\nSerializer         : {_serializer}"
-        if len(self._compressors) > 0:
-            template += "\nCompressors        : {_compressors}"
+
+        template += "\nCompressors        : {_compressors}"
 
         if self._count_bytes is not None:
             template += "\nNo. bytes          : {_count_bytes}"

tests/test_info.py

@@ -71,7 +71,9 @@ def test_array_info(zarr_format: ZarrFormat) -> None:
         Order              : C
         Read-only          : True
         Store type         : MemoryStore
-        Serializer         : BytesCodec(endian=<Endian.little: 'little'>)""")
+        Filters            : ()
+        Serializer         : BytesCodec(endian=<Endian.little: 'little'>)
+        Compressors        : ()""")
 
 
 @pytest.mark.parametrize("zarr_format", ZARR_FORMATS)
@@ -110,7 +112,9 @@ def test_array_info_complete(
         Order              : C
         Read-only          : True
         Store type         : MemoryStore
+        Filters            : ()
         Serializer         : BytesCodec(endian=<Endian.little: 'little'>)
+        Compressors        : ()
         No. bytes          : {count_bytes} ({count_bytes_formatted})
         No. bytes stored   : {count_bytes_stored_formatted}
         Storage ratio      : {storage_ratio_formatted}